TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 922 of 1393
DISASSEMBLY - Continued
NOTE
All spring-centered spool valves in the control valve are removed and disassembled the same
way. Three spool valves are stamped with a D (double action) on the shank of the spool valve.
The fourth is stamped with an S (single action) and is located next to the oil outlet port in the
control valve. Steps (9) through (12) will cover a double-action valve only.
9.
Remove spool valve cap (Figure 6, Item 2) and spool valve (Figure 6, Item 1) from crane control valve
(Figure
6,
Item
8).
10.
Clamp spool valve (Figure 6, Item 1) in soft-jawed vise.
11.
Using improvised compression tool, compress spring (Figure 6, Item 5) and remove snapring
(Figure
6,
Item
3), outer spacer (Figure 6, Item 4), spring, travel limit washer (Figure
6,
Item
6), and inner
spacer (Figure 6, Item 7) from spool valve (Figure 6, Item 1).
M9679DAA
6
7
5
4
3
2
1
8
Figure 6.
Crane Gondola Control Valve Disassembly.
TM 9-2320-272-23-4
0698
0698-7
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